28001610

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{263}}^1$

素因数の和:309

約数の個数: 144

約数和(自身を含む): 90440064

約数和(自身を除く): 62438454

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 13, 14, 15, 18, 21, 26, 30, 35, 39, 42, 45, 63, 65, 70, 78, 90, 91, 105, 117, 126, 130, 169, 182, 195, 210, 234, 263, 273, 315, 338, 390, 455, 507, 526, 546, 585, 630, 789, 819, 845, 910, 1014, 1170, 1183, 1315, 1365, 1521, 1578, 1638, 1690, 1841, 2366, 2367, 2535, 2630, 2730, 3042, 3419, 3549, 3682, 3945, 4095, 4734, 5070, 5523, 5915, 6838, 7098, 7605, 7890, 8190, 9205, 10257, 10647, 11046, 11830, 11835, 15210, 16569, 17095, 17745, 18410, 20514, 21294, 23670, 23933, 27615, 30771, 33138, 34190, 35490, 44447, 47866, 51285, 53235, 55230, 61542, 71799, 82845, 88894, 102570, 106470, 119665, 133341, 143598, 153855, 165690, 215397, 222235, 239330, 266682, 307710, 311129, 358995, 400023, 430794, 444470, 622258, 666705, 717990, 800046, 933387, 1076985, 1333410, 1555645, 1866774, 2000115, 2153970, 2800161, 3111290, 4000230, 4666935, 5600322, 9333870, 14000805, 28001610]

約数ペア:

[(1, 28001610), (2, 14000805), (3, 9333870), (5, 5600322), (6, 4666935), (7, 4000230), (9, 3111290), (10, 2800161), (13, 2153970), (14, 2000115), (15, 1866774), (18, 1555645), (21, 1333410), (26, 1076985), (30, 933387), (35, 800046), (39, 717990), (42, 666705), (45, 622258), (63, 444470), (65, 430794), (70, 400023), (78, 358995), (90, 311129), (91, 307710), (105, 266682), (117, 239330), (126, 222235), (130, 215397), (169, 165690), (182, 153855), (195, 143598), (210, 133341), (234, 119665), (263, 106470), (273, 102570), (315, 88894), (338, 82845), (390, 71799), (455, 61542), (507, 55230), (526, 53235), (546, 51285), (585, 47866), (630, 44447), (789, 35490), (819, 34190), (845, 33138), (910, 30771), (1014, 27615), (1170, 23933), (1183, 23670), (1315, 21294), (1365, 20514), (1521, 18410), (1578, 17745), (1638, 17095), (1690, 16569), (1841, 15210), (2366, 11835), (2367, 11830), (2535, 11046), (2630, 10647), (2730, 10257), (3042, 9205), (3419, 8190), (3549, 7890), (3682, 7605), (3945, 7098), (4095, 6838), (4734, 5915), (5070, 5523)]